2132780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{631}}^1$

素因数の和:666

約数の個数: 36

約数和(自身を含む): 4857552

約数和(自身を除く): 2724772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 631, 676, 845, 1262, 1690, 2524, 3155, 3380, 6310, 8203, 12620, 16406, 32812, 41015, 82030, 106639, 164060, 213278, 426556, 533195, 1066390, 2132780]

約数ペア:

[(1, 2132780), (2, 1066390), (4, 533195), (5, 426556), (10, 213278), (13, 164060), (20, 106639), (26, 82030), (52, 41015), (65, 32812), (130, 16406), (169, 12620), (260, 8203), (338, 6310), (631, 3380), (676, 3155), (845, 2524), (1262, 1690)]